CREATE TABLE `message` ( 
  `id` int(11) NOT NULL, 
  `message` text NOT NULL, 
  `user` varchar(255) NOT NULL, 
  `created` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP 
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4; 

ALTER TABLE `message` 
  ADD PRIMARY KEY (`id`); 

ALTER TABLE `message` 
  MODIFY `id` int(11) NOT NULL AUTO_INCREMENT;